Which factor helps explain the historic low in the teenage birth rate?
A. The price of condoms has steadily increased.
B. A greater number of adolescents are taking the "virginity pledge" in schools across the country.
C. The rate of sexual intercourse among teenagers has increased, and the use of birth control has decreased.
D. Substitutes for sexual intercourse, such as oral sex, are increasingly accepted as an alternative to sexual intercourse.
Answer: D
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Although a particular medicine is no more effective than a placebo, a physician remembers cases when patients improved, and therefore considers the medicine effective. What tendency is occurring here?
a. Functional fixedness b. Maximizing strategy c. Confirmation bias d. The framing effect
Many researchers have tested people's ability to recognize emotions from facial expressions. Why do these studies underestimate our ability to judge other people's emotions? a. Many studies have asked observers to match the expressions to a list of choices. b. Ordinarily we consider other information such as context and posture
c. The faces shown in the experiments gave relatively weak expressions. d. Most experiments asked the observers to identify the expressions quickly.
Suicide rates tend to be higher in places that generally have ____ climates. In general, suicide rates also tend to be higher during the ____
a. good; spring and summer months b. good; winter months c. bad; spring and summer months d. bad; winter months
The human characteristic that has been most investigated for its genetic basis is ______.
A. personality B. creativity C. intelligence D. criminal behavior